One vertex per element, one color per generator, with an edge from x to x·s.
(2,3)(5,6,9,14)(7,13,16,12)(8,18,17,20)(10,19,11,15)(21,22,26,30)(23,27,28,36)(24,32,35,31)(25,33,34,29)(1,2,4,3)(5,7)(6,12)(8,11)(9,16)(10,17)(13,14)(15,20)(18,19)(21,23,26,28)(22,27,30,36)(24,33,35,29)(25,32,34,31)(5,8,11,16,9,17,10,7)(6,13,19,20,14,12,15,18)(21,24,34,36,26,35,25,27)(22,28,33,31,30,23,29,32)(1,3,4,2)(6,14)(12,13)(15,19)(18,20)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.